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7 The Modern Staged Repair ofClassic Bladder Exstrophy
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introitus and vagina must be reconstructed to allow placement of feminine products, including tampons, or even to adequately allow for penetrative intercourse [63]. Utilizing the Female Sexual Function Index, or FSFI, Canalichio etal. found that women with exstrophy scored lower across all domains in the FSFI, including desire, arousal, and lubrication [64]. Though EEC affects males at a rate of 3-to-1, research and improvements in the quality of life for women along the EEC spectrum deserve just as much focus and attention.

Conclusion

The EEC remains one of the most challenging diagnoses for reconstructive sur­geons, owing to its inherent rarity. Add to this the infrequency with which it is seen and operated on, and the complex can easily overwhelm. However, several surgical techniques now exist to allow these children to not only survive infancy but also lead long and productive lives. The MSRE, championed at the authors’ institution, remains the most commonly used method for closure and the technique against which others are compared. It is our hope that, regardless of the technique utilized, careful consideration of the bony pelvis, with a low threshold to perform pelvic osteotomies followed by lower limb immobilization, along with aggressive soft tis­sue mobilization, remains at the forefront of the reconstructive surgeon’s mind and arsenal.
Dedication This chapter is dedicated to the extraordinary talent and humility of Douglas A.Canning, MD, a leader in exstrophy care who completed his pediatric urology training at Johns Hopkins in Baltimore, MD, before ultimately becoming Professor and Chief of Pediatric Urology at Children’s Hospital of Pennsylvania in Philadelphia, PA.His legacy lives on in the trainees lucky enough to learn from him, in colleagues he helped mentor, and in the countless lives he touched caring for patients and their families. His calm, thoughtful, and kind nature is sorely missed.

References

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7 The Modern Staged Repair ofClassic Bladder Exstrophy
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29. Benz KS, Jayman J, Maruf M, Baumgartner T, Kasprenski M, Friedlander DA, etal. Pelvic and lower extremity immobilization for cloacal exstrophy bladder and abdominal closure in neonates and older children. J Pediatr Surg. 2018;53(11):2160–3.
30. Haney NM, Crigger C, Sholklapper T, Mudalegundi S, Griggs-Demmin A, etal. Pelvic oste­otomy in cloacal exstrophy: a changing perspective. J Pediatr Surg. 2022;11(19):1–6.
31. Zaman M, Kasprenski M, Maruf M, Benz K, Jayman J, etal. Impact of pelvic immobilization techniques on the outcomes of primary and secondary closures of classic bladder exstrophy. J Pediatr Urol. 2019;15(4):382.e1–8.
32. Meldrum KK, Baird AD, Gearhart JP.Methods of pelvic and extremity immobilization fol­lowing bladder exstrophy closure: associated complications and impact on surgical success. Urology. 2003;62:1109.
33. Haffar A, Morrill C, Crigger C, Sponseller PD, Gearhart JP. Fixation with lower limb immobilization in primary and secondary exstrophy closure: a saving grace. J Pediatr Urol. 2023;19(2):179.e1–7.
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35. Kelly D. Campbell’s operative orthopaedics. 14th rev ed. Philadelphia: Elsevier; 2021. p.1186e230.
36. Zaman MH, Davis R, Maruf M, DiCarlo H, Gearhart JP.Exploration of practice patterns in exstrophy closures: a comparison between surgical specialties using a national and institu­tional database. Urology. 2019;131:211e6.
37. Maruf M, Jayman J, Kasprenski M, Benz K, Feng Z, Friedlander D, etal. Predictors and out­comes of perioperative blood transfusions in classic bladder exstrophy repair: a single institu­tion study. J Pediatr Urol. 2018;14(5):430.e1e6.
38. Khandge P, Wu W, Hall S, Manyevitch R, Sullivan B, etal. Osteotomy in the newborn classic bladder exstrophy patient: a comparative study. J Pediatr Urol. 2021;17(4):482.e1–6.
39. Sholklapper T, Crigger C, Haney N, Khandge P, Wu W, Sponseller PD, Gearhart JP.Orthopedic complications after osteotomy in patients with classic bladder exstrophy and cloacal exstro­phy: a comparative study. J Pediatr Urol. 2022;18(5):586.e1–8.
40. Surer I, Baker LA, Jeffs RD, etal. The modied Cantwell-Ransley repair in exstrophy and epispadias: 10-year experience. J Urol. 2000;164:1040.
41. Sholklapper T, Crigger C, Haney NM, Harris TGW, Gearhart JP.Application of tunica vagina­lis ap for epispadias repair in the epispadias-exstrophy complex. Urology. 2023;171:190–5.
42. Surer I, Baker LA, Jeffs RD, etal. Modied Young-Dees-Leadbetter bladder neck reconstruc­tion in patients with successful primary bladder closure elsewhere: a single institution experi­ence. J Urol. 2001;165:2438.
43. Guan H, Sholklapper T, Crigger C, Haney NM, Harris TGW, Gearhart JP. Modied Tanagho ap in bladder exstrophy: novel application of a tested technique. J Pediatr Urol. 2023;19(1):37.1–7.
44. Oesterling JE, Jeffs RD.The importance of a successful initial bladder closure in the surgi­cal management of classical bladder exstrophy: analysis of 144 patients treated at the Johns Hopkins Hospital between 1975 and 1985. J Urol. 1987;137:258.
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45. Husmann DA, McLorie GA, Churchill BM.Closure of the exstrophic bladder: an evalua­tion of the factors leading to its success and its importance on urinary continence. J Urol. 1998;142:522.
46. Novak TE, Costello JP, Orosco R, etal. Failed exstrophy closure: management and outcome. J Pediatr Urol. 2010;6:381.
47. Davis R, Sood A, Maruf M, Singh P, Kasprenski M, Di Carlo HN, Gearhart JP. The failed bladder closure in cloacal exstrophy: management and outcomes. J Pediatr Surg. 2019;54(11):2416–20.
48. Goldstein SD, Inyoue BM, Reddy S, Lue K, Young EE, Abdelwahab M, etal. Continence in the cloacal exstrophy patient: what does it cost? J Pediatr Surg. 2016;51(4):622–5.
49. Hesh CA, Young E, Intihar P, etal. The cost of failure: the economic impact of failed primary closure in classic bladder exstrophy. J Pediatr Surg. 2016;51(8):1312–6.
50. Gearhart JP, Jeffs RD.State of the art reconstructive surgery for bladder exstrophy at the Johns Hopkins Hospital. Am J Dis Child. 1989;143:1475.
51. Chan DY, Jeffs RD, Gearhart JP.Determinates of continence in the bladder exstrophy popula­tion after bladder neck reconstruction. Urology. 2001;165:1656.
52. Canning DA, Gearhart JP, Peppas DS, etal. The cephalotrigonal reimplant in bladder neck reconstruction for patients with exstrophy or epispadias. J Urol. 1992;150:156.
53. Baird AD, Nelson CP, Gearhart JP.Modern staged repair of bladder exstrophy: a contemporary series. J Pediatr Urol. 2007;3(4):311–5.
54. Maruf M, Manyevtich R, Michaud J, Jayman J, Kasprenski M, etal. Urinary continence out­comes in classic bladder exstrophy: a long-term perspective. J Urol. 2020;203:200–5.
55. Maruf M, Kasprenski M, Jayman J, Goldstein S, Benz K, Baumgartner T.Achieving urinary continence in cloacal exstrophy: the surgical cost. J Pediatr Surg. 2018;53(1):1937–41.
56. Surer I, Ferrer F, Baker L, Gearhart JP.Continent urinary diversion and the exstrophy-epispa­dias complex. J Urol. 2003;169(3):1102–5.
57. Woodhouse CR, North AC, Gearhart JP.Standing the test of time: long-term outcome of recon­struction of the exstrophy bladder. World J Urol. 2006;24(3):244–9.
58. Haney NM, Li O, Agrawal P, Kohn TP, Sholklapper T, Crigger C, DiCarlo HN, Gearhart JP.Prevalence of opiod and benzodiazepine use in adult patients with the exstrophy-epispadias complex. J Pediatr Urol. 2023;19(562):e1–562.e8.
59. Harris TGW, Crigger C, Sholklapper T, Khandge P, Yang R, Redett R, Gearhart JP.The impact of repeated bladder surgeries on successful bladder neck closure in classic bladder exstrophy: the role of mucosal violations. J Pediatr Urol. 2023;19(4):372.e1–6.
60. Crigger C, Harris TGW, Sholklapper T, Haffar A, Morrill C, Nasr I, Yang R, Redett R, Gearhart JP.Mucosal violations and their effect on successful bladder neck closure in cloacal exstrophy. J Pediatr Surg. 2023;58:2313.
61. Harris KT, Namdarian B, Gearhart JP, Wood D.Long term outcomes in classic bladder exstro­phy– the adult picture. J Pediatr Urol. 2023;20:157.
62. Harris TGW, Khandge P, Wu W, Leto Barone AA, Manyevitch R, etal. Sexual health out­comes after penile reconstruction in the exstrophy-epispadias complex. J Pediatr Urol. 2022;18(6):747–55.
63. Sinatti C, Waterschoot M, Roth J, Van Laecke E, Hoebeke P, Spinoit AF.Long-term sexual outcomes in patients with exstrophy-epispadias complex. Int J Impot Res. 2021;33:164–9.
64. Canalichio KL, Ahn J, Artigas P, Oelschlager AM, Rowe C, Merguerian P, et al. Patient­reported outcomes in adult females with bladder exstrophy: a study of long-term sexual, repro­ductive and urinary outcomes using social media. J Pediatr Urol. 2020;16(5):567.e1–7.
C. B. Crigger and J. P. Gearhart

The Kelly Procedure

NavroopS.Johal, MehakSehgal, andImranMushtaq

Introduction

Bladder exstrophy (BEX) represents a signicant reconstructive challenge for the paediatric surgeon and urologist. The incidence of BEX is 1in 46,000 live births and is twice as common in males compared with females [1]. In the past, children born with this condition were condemned to poor outcomes and, for many, an unfor­tunate quality of life, with little prospects for education, employment and relation­ships. Even today in some countries these outcomes remain the reality for patients with bladder exstrophy. Nevertheless, early diagnosis, prompt initial management and novel surgical reconstructive techniques have resulted in reduced morbidity and signicant improvements in the long-term quality of life.
There are several factors involved in the success of managing a patient with blad­der exstrophy, and it is not solely based upon a successful operative closure in the neonatal period, even though we know that children requiring a redo closure fare less well in terms of urinary continence [2]. It is paramount that treatment is under­taken by a bladder exstrophy specialist who has an understanding of the altered anatomy and appreciates the evolution of bladder development, increase in capacity and function throughout childhood and into adulthood. The bladder exstrophy spe­cialist should be part of a bladder exstrophy multi-disciplinary team comprising one
8
Supplementary Information The online version contains supplementary material available at [https://doi.org/10.1007/978-3-031-91238-2_8].
N. S. Johal · M. Sehgal · I. Mushtaq (*) Department of Paediatric Urology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 A. R. Shukla, R. S. Joshi (eds.), Bladder Exstrophy and Epispadias,
https://doi.org/10.1007/978-3-031-91238-2_8
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or more urology nurse specialists, psychologist, gynaecologist and orthopaedic spe­cialist. In the United Kingdom, bladder exstrophy care has been centralised to two centres for the last 20years, with the main objective having been to improve out­comes. It is also essential that there exists a pathway for children with bladder exstrophy to transition to an adult or adolescent urologist, and for that individual to possess the same appreciation for the condition and most importantly to have a thorough understanding of the previous surgeries that would have been undertaken.
It is without doubt that Justin Kelly made one of the most noteworthy contribu­tions to the management of children with BEX when he rst described in 1971 ‘a procedure for lengthening the phallus in boys with exstrophy of the bladder’, which we now understand universally as the ‘Kelly procedure’ [3]. It is somewhat ironic that a small spelling mistake in his surname on that publication has kept this paper concealed from those seeking a better understanding of his operation, which still remains somewhat of an enigma if it has not been witnessed it in person. Justin Kelly rst encountered patients with BEX during his fellowship training in Boston where he worked with Robert Gross in the late 1960s [4]. He encountered many patients with disappointing clinical outcomes whom at the time were undergoing a cystectomy and ureterosigmoidostomy. Although they were continent of urine, it was evident that the older male patients with BEX were psychologically scarred by the short penile length and reportedly some males were committing suicide [4]. Justin Kelly undertook a detailed anatomical dissection of the male genitalia in the autopsy room and conceptualised a new technique that would enhance and ‘nor­malise’ the anatomy. He initially proposed the procedure to lengthen the penis in male patients with bladder exstrophy [3]. He described the identication and mobil­isation of the neurovascular pedicle within Alcock’s canal that supplied each of the corporal bodies and a method for detaching the corporal bodies from their attach­ment to the ischiopubic ramus (Fig.8.1). This manoeuvre would allow the corporal bodies to come into approximation and move out of the pelvis, thereby enhancing the visibility of the penis. Over time Justin Kelly modied and further rened the technique, both when he returned to Melbourne, Australia, and subsequently at Great Ormond Street Hospital for Children, London. By the time he was working in London, the Kelly procedure had already matured from a penile lengthening to a continence procedure, by virtue of the fact that the exposure achieved by the radical dissection allowed an orthotopic reconstruction of the bladder neck and an external urethral sphincter mechanism.
At our institution for the past 20years, the surgical pathway for bladder exstro­phy, for both males and females, has comprised a neonatal bladder closure without osteotomy followed by a Kelly procedure at 12–18months of age. The bladder neck is constructed in a more gentle manner and provides a xed outlet resistance for a gradual increase in bladder capacity over the ensuing years. This is supplemented with a more dynamic outlet resistance achieved through the implementation of nurse-led biofeedback therapy once the child is 6–8years of age. Patients are moni­tored with ultrasound imaging of the urinary tract, non-invasive and invasive urody­namic evaluation into late adolescence before transitioning to the adult urology services.
8 The Kelly Procedure
Fig. 8.1 Original hand drawing by Justin Kelly of the identication and exposure of the pudendal neurovascular bundle
131
Operative Steps oftheKelly Procedure inMales (Video 1)
As mentioned above, all our BEX patients undergo bladder closure in the early neonatal period, with high successful closure rates without the need to perform pelvic osteotomy [5]. To achieve a tension free bladder closure, it is essential to release the bladder detrusor from the rectus muscles laterally, extending down dis­tally to just above and lateral to the verumontanum in boys and the vaginal opening in girls. At this level, posteriorly will be encountered the ‘tight’ interpubic bands, also known as intersymphyseal bands, which need to be fully divided on each side in order for the construction of the bladder neo-meatus, which should be close t­ting on a 8 Fr urethral stent. Despite this somewhat radical dissection at the time of initial bladder closure, we do not encounter difculty with further dissection in this region at the time of the Kelly procedure.
In his original publications of this operation, Justin Kelly described it as a ‘radi­cal soft tissue mobilisation’, but those who have adopted this technique prefer to address it as a Kelly procedure. Just as the name has altered a little, the key compo­nents have done so also. For example, ureteric reimplantation and creation of a
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hypospadiac urethral meatus are no longer considered by many as mandatory for success in terms of continence and cosmesis. In our opinion, a Kelly procedure should, however, comprise the following key steps:
• Radical mobilisation of the pelvic musculature and corpora
• Identication and preservation of the pudendal neurovascular bundles
• Construction of an orthotopic bladder neck
Deconstruction: Opening Midline Wound andDegloving ofPenis
A 4/0 Prolene suture is placed through the glans to aid retraction. The skin incision marked along the previous incision, encircling the urethral neo-meatus and then extending to either side of the urethral plate and meeting ventrally in region of the frenulum of the penis. The previous lower midline wound is opened and deepened to the level of the rectus muscle. The skin and subcutaneous tissues are raised exten­sively to achieve a full exposure of the rectus muscle and pubic tubercles. The rectus is incised in the midline taking care to avoid, if possible, a breach in the peritoneum. It is also desirable to not breach the bladder, which is often adherent to the under surface of the rectus muscle. The incision continues around the penile shaft skin leaving a mucosal cuff below the glans. The penis is fully degloved to expose lateral and ventral surfaces of the corporal bodies. This dissection should continue proxi­mally along the corporal bodies to expose their attachment to the ischiopubic ramus. In this region, a triangular area of bulbospongiosum and overlying muscle will come into view. The bulbospongiosus muscle runs horizontally between the ischio­pubic rami, over the surface of each corporal body and meeting in the midline. The preservation of this muscle is vital as it will be used to create an external urethral sphincter.
The bladder should be separated from the rectus muscle, taking care not to dam­age the detrusor muscle. The dissection should continue inferiorly towards the tri­gone and area of the verumontanum, until the point is reached where the attachment of the corpora to the ischiopubic ramus is visualised. It is essential to preserve an adequate amount of detrusor muscle in the region of, and proximal to, the verumon­tanum, as this will be utilised for the placement of the sutures in the construction of the bladder neck.
Identification ofPudendal Neurovascular Bundle
Before the corpora is detached from the ischiopubic ramus, the pudendal neurovas­cular bundle (artery, veins and nerve) to each corpora should be localised. The rst step is to expose the pelvic muscular oor (levator ani) by retracting the bladder
8 The Kelly Procedure
Fig. 8.2 Operative image demonstrating location of pudendal neurovascular bundle
133
medially, going deep into the pelvis until the ischial spine can be localised by palpa­tion. The neurovascular bundle runs within Alcock’s canal, which lies beneath the pelvic oor musculature. The pelvic oor is opened with bipolar cautery along an imaginary line that extends from the rst point of union between the corpora and the ischiopubic ramus anteriorly to the ischial spine posteriorly. Once incised, the underlying ischiorectal fat is retracted inferiorly until the neurovascular bundle can be seen through the fascia of Alcock’s canal. The pudendal vein usually receives a tributary from the obturator internus through a small perforation in the fascia of Alcock’s canal. This ‘constant’ vein is a helpful landmark for the localisation of Alcock’s canal and the pudendal neurovascular bundle within. The overlying fascia is incised along its length exposing the neurovascular bundle (Fig.8.2). Once identi­ed, attention then moves to detachment of the corporal bodies.
Detachment ofCorpora andRelease ofthePenis
The corpora need to be fully released medially from the ischiopubic rami. Monopolar cautery is used to make an incision approximately 5mm above and lateral to the attachment of the corpora to the pubic bone, extending through the periosteum/ perichondrium to the surface of the bone. Using a periosteal elevator and/or an artery forceps, the corpora is peeled off the pubic bone in an inferior direction with a ake of ischium and pubis, exposing the underlying white-coloured perichon­drium. Care must be taken to always keep the neurovascular bundle in sight, and as the separation advances the neurovascular bundle will be seen to enter the tail of the corpora. Moving posteriorly from this point, dissection and division of brous attachments of the corpora lateral to the neurovascular bundle will release the cor­pora entirely (Figs.8.3 and 8.4).
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Fig. 8.3 Original hand drawing by Justin Kelly showing the fully detached corporal body and released pudendal neurovascular bundle
N. S. Johal et al.
Fig. 8.4 Operative image demonstrating detachment of corpora from ischiopubic ramus (black arrow), ake of pubis (green arrow) and pudendal nerve (yellow arrow)
Disassembly ofCorpora andUrethral Plate
Using either sharp dissection or monopolar needle cautery (set at level 8 or 10), the 2 corpora are separated from the dorsally placed urethral plate. The corpora are not detached from the glans distally. The separation of the corpora from the urethral plate is often a bloodless dissection and extends proximally only as far as the region of the prostate gland. This landmark is often heralded by the onset of brisk bleeding